G gthayley New member Oct 22, 2010 #1 faster? 2500 hd series ,4:11 gears, 4speed with crawling gear . How many horsepower is it stock? How do i get 400 outof it?
faster? 2500 hd series ,4:11 gears, 4speed with crawling gear . How many horsepower is it stock? How do i get 400 outof it?
